Advertisements
Advertisements
प्रश्न
Classify the following as physical or chemical properties
Most metal oxides form alkalis on interacting with water.
उत्तर
Chemical property
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
What are (i) positive catalysts and (ii) negative catalysts? Support your answer with one example for each of them.
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
TRUE \ FALSE
Weak electrolytes dissociate partially in their aqueous or fused state.
Give an example of a reaction where the following are involved
Electricity
Distinguish by heating the following in dry test tubs.
Zinc nitrate and copper nitrate.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Calcium hydroxide.
A reaction between an acid and a base is called ______.
What is the use of indicator?
Give two examples for each of the following cases:
Chemical changes.
